Fire-extinguishing apparatus.



C. BRENT.

FIRE EXTINGUISHING APPARATUS.

APPLICATION FILED JAN-21,1914.

1,57, Patented Oct. 19, 1915.

07% n gag/$2461- am-2W ill) cnannns nnnnr, or KENDRA, on'ranro, CANADA.

EIRE-EXTINGUISHIIIG APPARATUS.

arcia.

Specification of Letters Patent.

Patented Uct. f9, 1915.

Application filed January 21, 1914. Serial No. 813,512.

'1 0 all whom it may concern:

Be it known that I, CHAnLns BRENT, a citizen of the United States, residing at Kenora, in the Province of Ontario, Canada, have invented certain new and useful Improvements in Fire-Extinguishing Appara: tus, of which the following is a specification.

This invention relates generally to fire extinguishing apparatus and particularly to that class of such devices employing an explosive engine as a source of motive power.

In carrying out my invention I provide a fire extinguisher which may be motor driven or may be drawn by horses or, other means, and including a motor, a suitable pump which may be coupled or geared to the motor, and connected to any suitable source of water supply, and including also a source of carbonic acid gas supply which is connected to the. pump or to a suitable connection leading to or from the same in a manner such that the gas may be injected or drawn into the stream of water which passes through the pump so as to thoroughly carbonate the same.

The invention may be further briefly summarized as consisting of certain novel details ofconstruction and combinations and arrangements of parts which will be described in the specification and set forth in e ap e d c ms- For a better understanding of my invention, reference is had to the accompanying drawings wherein Figure 1 is a side elevation of a fire extinguisher or extinguishing apparatus constructed in accordance with my invention, some of the parts being broken away for the sake of clearness; Fig. 2 is a rear end view of the same, parts being broken away; and Fig. 3 is a detail view showing the clutch mechanism for the pump.

Referring to the figures of the drawings 10 represents the side bars of the frame or body of a suitable vehicle which may be either a motor vehicle or, horse drawn truck, preferably the former, the frame being connected to wheels 11 in the usual or any suitable manner. Near the front end of the truck is a motor or engine 12 having a'driving shaft 12 and atthe rear of the motor is a pump ll having a shaft 14, both the motor and the pump being of any suitable construction but having their'shafts in alinemea as h motor is ad p ed to b coupled to the pump by suitable clutch mechanlsm comprising a fly wheel clutch member 40 having an inclined internal clutch face 411 adapted to receive a conical clutch member' 42 loosely splined upon the shaft 14. This clutch member 4:2 is provided with an annular groove 43 adapted to receive a throwing lever a l pivoted to a bracket 45 secured to the pump casing. A spring 46 normally tends to throw the clutch member 12 into engagement with the fly wheel clutch member 40, and a suitable ratchet segment and pawl mechanism of ordinary construction, the segment being shown at 17, is arranged to hold' the clutch member 40 to the left as shown in the drawings, with the clutch member out of engagement.

From the foregoing it will be seen that the operator may couple the pump to the engine at will. Also supported on the truck isa carbonated water tank 17 and on each side of the tank 17 is a liquid carbonic acid gas tank 18,'these tanks being supported on and secured to the truck by suitable memhers 19 and 20 which extend about the tanks.

The pump 14 is provided with a suction pipe 21 which may be connected to a suitable suction hose 22, a valve 23 being provided so that the quantity of water passing through the pump can be controlled, and the pump is also provided with a delivery pipe 24: provided with a T 25 and valves 26 and 27. One branch of the T may be connected directly to a discharge hose 28, and the other branch'is connected to a pipe 29 leading to and communicating with the adjacent end of the tank 17. Connected to the gas tanks 18are gas discharge pipes 30 and 31, each having a shut-off valve 32 and both being connected to a common pipe 33 having at its end a gas injector 84: in' the suction side of the'pump and by means of which gas may be injected into the stream of water passing through the'pump so as to thoroughly carbonate the same.

The tank 17 is provided with a water discharge pipe 35 which is connected to a valve 36 and ma discharge hose 37. The tank 17 is'also provided with a gas discharge pipe 38 provided with a valve 39 to which is connected a pipe 40 having a gas injector 41 extending into the water discharge connec- ,tion from the tank. The tank 17 is further provided with a pressure gage 4L2, safety valve l3, and gage glass 44. v

The apparatus is designed to be used as follows: The tank 17 is normally charged with carbonated water, and to charge the tank the suction hose 22 is connected to a hydrant or other supply of water thevalves 23 and 27 are opened and the motor is started andconnected to the pump 14. Simultaneously'one of the gas tanks 1s connected 7 with the suctionconnection of thepump by opening one of the valves 32 and a stream of gaspasses by means of the iniector 34.- into the'str'eam' of water'entering the pump. It is to be understood that the relative proportions of gas and water passing through the pump maybe regulated by opening or closing the gas val e 32 and water valve 23 As .soon as the tank is charged with carbonated water to the proper point. the height of the paratus runs to the location of the fire, the

apparatus being'preterably dri en bv the motor 12, although it may, if desired, be

drawn by horses. the transmission gear is thrown out leaving the motor in operation. One of the operators then proceeds to discharge the thoroughly carbonated water in the tank 17 upon the fire while another connects the suction hose of the pump to the nearest hxlrant or other source of water supply. If it is seen that the fire is too large to be controlled by the contents of the tank 17 alone. the pumpis thrown into gear, suction valve 23 and one of the gas valves 32 is opened andwater is forced into the tank astast as it is discharged. being carbonated in its passage through the pump and connected pipe. The apparatus is thus capable of throwing a continuous stream of carbonated water as long as there is any gas in the tanks 18 and since there are two tanks always available-on the apparatus and as they are used alternately and either may be readily replaced with a charged tank while the other is being used, it will be possible to'throw'carbonated water for as long a period as is desirable particularlv as emergency or spare tanks charged with'the gas will a'lwavs be on hand and may be carried'in I any suitable manneron the apparatus.

.In case it may bedesirable to use carbonated water on one part of the fire and plain water on another, water valve 27 and the gas valve 32 may be closed and the carbonated contents of the tank 17 may be thrown on I the fire through discharge hose 37 while plain or uncarbonated water may be thrown through the discharge hose 28, water being supplied by the pump 1+1. and the suction hose 22. In case it is required to throw two streams of plain water, the gas supply is cut off and both water valves 26 and 27 are opened or in case it is desired to threw two streams of carbonated water all the valves will be opened. In case it is desirable to throw a streamof gas and water, water valve 36 and gas valve 29 will be opened in which case the stream of gas is permitted to pass out of the tank 17 into the center of the stream of water which passes through the pipe 35 and discharge hose 37 by means ot'the gas injector 41. If necessary gas only may be discharged through the discharge hose 37 by closing water valve 36 and opening gas valve 39. It will be seen, therefore, that the range of the apparatus is very great and that the operator or operators ma at will throw one or more streams of plain water, one or more streams of carbonated water, carbonated water with extra or excess gas, or gas only depending upon the character and size of the fire or other conditions confronting the firemen.

Havingdescribed my invention. I claim 1. In combination. in a fire extinguishing apparatus, a motor, a pump adapted to be operated by said motor, said pump having a water inlet connection and a delivery connection, a source of carbonic acid gas, and

means whereby a free extinguishing gas may be injected or drawn into the stream of water passing throrgh the pump so as to thoroughly carbonate the same.

In combination, in a fire extinguishing apparatus, a vehicle provided with a motor, a pump, a source of free carbonic acid gas, means for operatively connecting the motor and pump, said pump having a water inlet connection to which a suction hose may be attached, an outlet connection to which a (lelivery hose may be attached, a gas delivery pipe extending from said source of gas for injecting free gas into the water which passes through the pump so as to carbonate the same, and suitable water and gas valves for regulating the relative proportions of free gas and water discharged by the pump.

3. In combination, in a fire extinguishing apparatus, a motor, a pump, means for driving said pump from the motor, a tank containing carbonic acid gas, means whereby gas may be delivered into the water which passes through the pump so as to carbonate the same, and means whereby plain water, carbonated water, water with ext a gas, or

gas alone may be delivered by the apparatus.

41-. In a fire extinguishing apparatus, a motor, a pump, means for operating said pump from the motor, a tank containing free carbonic acid gas, said pump having a suction connection and a discharge connection, a gas injector in the suction side of the pump and connected to the tank, and suitable water and gas valves whereby any desired proportions of free gas and water may be forced through the pump.

5. In combination, a fire extinguishing apparatus, a suitable vehicle carrying a motor, a pump adapted to be driven by said motor, a tank, a source of free carbonic acid gas, said pump having a suction pipe connection and a discharge pipe connection the latter communicating with the tank, a pipe leading from the source of gas and arranged to inject the free gas into the stream of water which passes through the pump, and suitable valves in the pipes.

6. In a fire extinguishing apparatus, a vehicle having supported thereon a motor, a pump, means for operatively connecting the motor and pump, a carbonated water tank, a carbonic acid gas tank, said pump having a suction pipe adapted to be connected to a source of water supply and having a delivery pipe which communicates with said carbonated water tank and is also provided with a hose connection, a gas delivery pipe connected to the gas tank and to one of the connections of the pump whereby carbonated water may be forced by said pump into the tank or directly through a delivery hose.

7. In a fire extinguishing apparatus, a vehicle having supported thereon a motor, a pump, means for operatively connecting the motor and pump, a carbonated water tank, a carbonic acid gas tank, said pump having a suction pipe adapted to be connected to a source of water supply and having a delivery pipe which communicates with said carbonated water tank and is provided with a hose connection, a gas delivery pipe connected to the gas tank and to one of the connections of the pump whereby the water passing through the pump may be carbonated, and gas and water delivery connections extending from said carbonated water tank.

8. In a fire extinguishing apparatus, a vehicle having supported thereon a motor, a pump, means for operatively connecting the motor and pump, a carbonated water tank, a carbonic acid gas tank, said pump having a suction pipe adapted to be connected to a source of water supply and having a delivery pipe which communicates with said carbonated water tank and having also a delivery hose connection, a gas delivery pipe connected to the gas tank and to one of the connections of the pump whereby the water forced through the pump may be carbonated and may be discharged through the delivery hose or into the carbonated water tank, the latter having discharge pipes for gas and water.

9. In a fire extinguishing apparatus, a motor, a pump adapted to be operated by said motor, a carbonic acid gas tank, a pressure tank adapted to contain water and gas under pressure, said pump having an inlet or suction connection and an outlet or delivery connection, means whereby gas and water may be delivered in any desired proportions throvgh the pump, a suitable pipe connecting the pump and pressure tank, and means whereby plain water, carbonated water, water and excess gas, or gas alone may be delivered by said pump and said pressure tank.

10. In a fire extinguishing apparatus, a vehicle provided with a motor, a pump, means for coupling the motor to the pump, a tank, a source of carbonic acid gas, said pump having a suction pipe provided with a gas injector and valve, a suitable pipe connection between said injector and the source of gas, said connection having a gas valve, and said pump having also a delivery pipe provided with means whereby a delivery hose may be attached thereto and a valve for permitting the water to be discharged through said hose, said delivery pipe having connected. thereto a pipe communicating with the tank, and provided with a valve for controlling the communication between said delivery pipe and tank, whereby plain water or carbonated water may be supplied through said delivery hose, or plain water, carbonated water, or gas may be supplied to said tank, and said tank having means whereby water, water with an excess of gas, or gas may be discharged therefrom.

In testimony whereof I a'liix my signature in presence of two witnesses.

CHARLES BRENT.

Witnesses:

G. O. FARQUHARSON, C. H. Tnnsorr.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

